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Update Protection against Microsoft Internet Explorer hxvz.dll Remote Code Execution Vulnerability (MS08-023)

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Check Point Reference: CPAI-2008-050
Date Published:
Severity:
Last Updated:
Source: Microsoft Security Bulletin MS08-023
Industry Reference(s): CVE-2008-1086
Protection Provided by: VPN-1
  • NGX R65
  • NGX R62
  • NGX R61
  • NGX R60
VSX
  • NGX R65
IPS-1
  • IPS-1
  • IPS-1 NGX R65
Who is Vulnerable?
Internet Explorer 7
Internet Explorer 6
Windows 2000 SP4 with Internet Explorer 5.01 SP4
Vulnerability Description
A remote code execution vulnerability has been reported in Microsoft Internet Explorer. The flaw is located in the ActiveX Controls of the component hxvz.dll. A remote attacker can exploit this vulnerability by convincing a user to visit a specially crafted Web page. Successful exploitation could result in execution of arbitrary code on the affected system.
Update/Patch Available
Apply patches:
Microsoft Security Bulletin MS08-023
Vulnerability Details
The vulnerability is due to a memory corruption error in Microsoft Internet Explorer. A remote attacker could exploit this issue by convincing a user to visit a malicious Web page. Successful exploitation of this issue could allow remote code execution on the affected system.

Protection Overview
By enabling this protection, SmartDefense will detect and block attempts to exploit this vulnerability. Depending on the traffic mix, activating this protection may result in performance degradation.

In order for the protection to be activated, update your VPN-1/InterSpect product to the latest SmartDefense update. For information on how to update SmartDefense, go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

VPN-1 NGX R65 & R62

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block ActiveX Object Memory Corruption Vulnerability (MS08-023).
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Web Client Enforcement Violation
Attack Information: ActiveX object memory corruption vulnerability detected (MS08-023)

VPN-1 NGX R61 & R60

How Can I Protect My Network?
1. In the Web Intelligence tree, click HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities.
2. Select the following:

Block ActiveX Object Memory Corruption Vulnerability (MS08-023)

3. Install security policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Web Client Enforcement Violation
Attack Information: ActiveX object memory corruption vulnerability detected (MS08-023)

VPN-1 VSX NGX R65

How Can I Protect My Network?
1. In the SmartDefense tab, click Web Intelligence > HTTP Client Protections > Microsoft Internet Explorer Vulnerabilities > Block ActiveX Object Memory Corruption Vulnerability (MS08-023).
2. In the configuration pane, under Settings > Mode, check Active.
3. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name: Web Client Enforcement Violation
Attack Information: ActiveX object memory corruption vulnerability detected (MS08-023)

IPS-1 & IPS-1 NGX R65

How Can I Protect My Network?
1. In the IPS-1 Policy Manager, click on the Protection tab.
2. In the Protection tree, click Application Intelligence > Badfiles, and select the ActiveX filter protection group.
3. Click CVE-2008-1086 ActiveX Object Memory Corruption Vulnerability (MS08-023) (IPS-1 NGX R65 only).
4. In the configuration pane, under Settings, check Active.
5. Click on Install Policy.

How Do I Know if My Network is Under Attack?
Upon attack, the following entry will be logged:

Alert Name: badfiles_activex
Description: cve_2008_1086_alert